Possible application areas of a diode-laser-based photoacoustic gas detection method

1998 ◽  
Author(s):  
Janos Sneider ◽  
Zoltan Bozoki ◽  
Miklos Szakall ◽  
Arpad Mohacsi ◽  
Zsolt Bor ◽  
...  
Keyword(s):  
Diode Laser ◽  
Detection Method ◽  
Gas Detection

Portable fiber-coupled diode-laser-based sensor for multiple trace gas detection

1999 ◽  
Vol 69 (5-6) ◽  
pp. 459-465 ◽  
Author(s):  
D.G. Lancaster ◽  
D. Richter ◽  
F.K. Tittel
Keyword(s):  
Diode Laser ◽  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection

Intracavity photoacoustic gas detection with an external cavity diode laser

1996 ◽  
Vol 63 (4) ◽  
pp. 399-401 ◽  
Author(s):  
Z. Bozóki ◽  
J. Sneider ◽  
G. Szabó ◽  
A. Miklós ◽  
M. Serényi ◽  
...  
Keyword(s):  
Diode Laser ◽  
External Cavity ◽  
Gas Detection ◽  
External Cavity Diode Laser

Optimization of Harmonic Detection System for Tunable Diode Laser Absorption Spectroscopy Based on Mathematical Algorithm

2018 ◽  
Vol 13 (10) ◽  
pp. 1533-1542 ◽  
Author(s):  
Danni Shen ◽  
Anji Yu
Keyword(s):  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Detection System ◽  
Rapid Development ◽  
Noise Removal ◽  
Tunable Diode Laser ◽  
Gas Detection ◽  
Laser Absorption Spectroscopy ◽  
Laser Absorption ◽  
Diode Laser Absorption

Traditional gas detection technology has a certain degree of defects in all aspects, and it has not been able to adapt to the rapid development trend. Tunable diode laser absorption spectroscopy (TDLAS) technology has some good performance and is gradually being used in various industries. First, a gas detection instrument is designed. Then, based on subsequent data processing techniques, a wavelet transform algorithm is proposed, and the noise removal and baseline correction functions of the detection system are implemented. The results show that the proposed method has good removal effect on the inherent noise of the system and high efficiency. During the selection of the absorption line, the selected line of some gases cannot avoid the interference of adjacent peaks. Therefore, a mathematical analysis method of differential fold back algorithm is proposed. The absorption peak shape is squeezed by the method of adjacent phase subtraction and displacement superposition. The problem is solved well, and the accuracy of concentration measurement of some gases is effectively improved.

Optical enhancement of diode laser-photoacoustic trace gas detection by means of external Fabry-Perot cavity

2005 ◽  
Vol 87 (4) ◽  
pp. 041110 ◽  
Author(s):  
Alessandro Rossi ◽  
Roberto Buffa ◽  
Mario Scotoni ◽  
Davide Bassi ◽  
Salvatore Iannotta ◽  
...  
Keyword(s):  
Diode Laser ◽  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection ◽  
Fabry Perot
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